R/E/P Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: 1 ... 5 6 [7] 8 9   Go Down

Author Topic: Neumann U67 Reissue: Complete Tear Down and Analysis  (Read 28213 times)

klaus

  • Moderator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1826
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #90 on: April 25, 2020, 10:34:35 pm »

You would need to define "level".

* On the objective and measurable level, the EMT/Gotham double Reussen shielded material is superior to any other construction, and a very neutral, no-offensive overall timbre.

* On the subjective "I like that sound" level, I prefer the Belden. But my experience is limited to just one application: U67.
Logged
Klaus Heyne
German Masterworks®
www.GermanMasterworks.com

klaus

  • Moderator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1826
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #91 on: April 25, 2020, 10:38:51 pm »

Yes, the diaphragm tension on K67 with tight skins can be reduced, and a mid-1960s tension and timbre can be dialed in in most cases, and pretty reliably.

But before you go off the deep end: switch heads and determine whether the bass-starved impression follows the capsule head, or whether it stays with the mic amp.
In case of the latter, make sure that in both amps S2 is set the same - open or closed.
Logged
Klaus Heyne
German Masterworks®
www.GermanMasterworks.com

Derek Samuel Reese

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 69
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #92 on: April 26, 2020, 10:19:36 am »

Here is a picture of my new custom cable :-)
I will let everyone know how it sounds when it arrives.
Logged

klaus

  • Moderator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1826
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #93 on: April 26, 2020, 11:11:42 am »

The special version U67 Tuchel connector, made exclusively for Neumann until the 1970s is no longer available anywhere, so keep that connector healthy! 

Specifically:
Make sure the white rubber buffer washer is seated at the bottom of the female connector, between the 7-pin black plastic insert and the metal housing (second picture, left connector), otherwise the rim of the plastic connector will crack when you screw it into your mic, and the connection becomes wobbly and will fail eventually.
These friction washers are often missing because they have dried off.
Logged
Klaus Heyne
German Masterworks®
www.GermanMasterworks.com

Derek Samuel Reese

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 69
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #94 on: April 26, 2020, 11:42:14 am »

Thank you Klaus, i will take very good care of this.
When i look at the swivel mount i have i can not see the rubber buffer washer, is that because it is hidden between the 7 pin plastic insert and the metal housing ?
is there a way for me to see this rubber washer without touching the wires ?
Logged

klaus

  • Moderator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1826
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #95 on: April 26, 2020, 11:46:10 am »

If you see just bare metal at the bottom of the channel between black insert and housing you are missing the spacer. Take a close-up picture right into the connector, for confirmation.
Logged
Klaus Heyne
German Masterworks®
www.GermanMasterworks.com

Derek Samuel Reese

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 69
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #96 on: April 26, 2020, 11:58:03 am »

My washer is black if that is in fact the rubber washer.
Logged

klaus

  • Moderator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1826
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #97 on: April 26, 2020, 01:24:36 pm »

Someone replaced the buffer spacer with two o-rings. It may work just fine. In any event: Tighten gently and stop when you feel resistance!
Logged
Klaus Heyne
German Masterworks®
www.GermanMasterworks.com

Derek Samuel Reese

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 69
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #98 on: April 26, 2020, 01:55:46 pm »

I guess the original rubber washer went bad then they replaced it.
Can you buy this rubber washer ? also can this washer be installed without disconnecting any wires ?
Logged

klaus

  • Moderator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1826
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #99 on: April 26, 2020, 02:16:01 pm »

The original rubber buffer is obsolete. You can always fashion one from high density foam or rubber, and you do not need to disconnect anything to slip it in.
Logged
Klaus Heyne
German Masterworks®
www.GermanMasterworks.com

Derek Samuel Reese

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 69
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #100 on: April 26, 2020, 03:00:15 pm »

The original rubber buffer is obsolete. You can always fashion one from high density foam or rubber, and you do not need to disconnect anything to slip it in.
Thats great news, finally something i can do and not be worried lol,
thanks again Klaus.
As far as the power supply goes, my psu has an XLR connection for the output.
Did Tuchel ever make a female (that doesn't have to screw in) XLR to a male XLR ?
that would be so nice to have another strong Tuchel connector for my output stage :-)
Or will i not be able to use a Tuchel connection unless i had the old socket > (picture below)
Logged

klaus

  • Moderator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1826
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #101 on: April 26, 2020, 05:17:19 pm »

Quote
Did Tuchel ever make a female (that doesn't have to screw in) XLR to a male XLR ?

XLR connectors were an American (Cannon) invention, in competition to Tuchel's three-blade audio out, used widely in Europe These were always of the screw-in type.
But I am not understanding the question in relation to your pictures: The upper pic shows an XLR audio out- standard for U.S. deliveries of NU67, and the lower shows the same for European deliveries which were still heavily invested in the Tuchel format.
Logged
Klaus Heyne
German Masterworks®
www.GermanMasterworks.com

Derek Samuel Reese

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 69
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #102 on: April 26, 2020, 06:07:59 pm »

Im sorry if my question wasn't clear Klaus, yes i have the XLR psu us version, i wanted to know if Tuchel ever made a female XLR that would fit into my us Psu ?
The reason i added the European psu was because the Tuchel fit that psu, and maybe the Tuchel would only fit a European psu.
Did Tuchel ever make an XLR connection 3 pin that had the same metal casing in this picture ?
Logged

klaus

  • Moderator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1826
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #103 on: April 26, 2020, 10:23:10 pm »

I am not sure whether I got your question right, but I need to state again: an  "XLR" connector has, by definition, a specific shape and pin arrangement that several manufacturers use or used: Cannon, Switchcraft, Neutrik are three of the main ones, with a few Chinese copies to throw in.

Tuchel is a brand of German connectors (the other is Binder) which are normed by the German broadcast institute, and which are not compatible with XLR types, but use the screw-in type form factor and the pin-out system of the RF-tight 2xx connectors, as mounted on U67, M269, etc. Their audio (3-pin) versions are a blade pin type that screws into the power supply-mounted female you pictured. So  no mix and match is possible between the two systems.
Logged
Klaus Heyne
German Masterworks®
www.GermanMasterworks.com

Derek Samuel Reese

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 69
Re: Neumann U67 Reissue: Complete Tear Down and Analysis
« Reply #104 on: April 26, 2020, 10:27:51 pm »

You answered my question Klaus :-)
So a good quality xlr is all i can have in my situation, thanks again Klaus.
Logged
Pages: 1 ... 5 6 [7] 8 9   Go Up